Planooraph co



1. P. HANSEN. MAGNESIUM LAMP FOR PHOTOGRAPHIC USE- APPLICATION FILED SEPT. 5.19I8.

1,3 1 5, 1 1 8 v I Patented Sept. 2, 1919.

'IHB COLUMBIA PLANIOORAFH CD" WQSHINUTON. D. L.

anus PETER HANSEN, or oornniineniv, DENMARK.

MAGNESIUM-LAMP ronrnoroenarnio Usn.

Specification of Letters Patent. Patentd Sept, 1919.

Application filed September 5, 1918. Serial No. 252,761.

To all whom it may concern: 1

Be it known that I, JnNs PETER HANSEN, manufacturer, a subject of the King of Denmark, and residing at No." 10 Jacobys alli, Copenhagen, Denmark, have invented certain new and useful Improvements in Magnesium-Lamps for Photographic Use, of which the following is a specification.

My invention concerns a magnesiumdamp for photographic use, and in which, for ignition of the light-producing powder, is used an ordinary match, which is struck against a general striking composition. f

Lamps of this kind are already'known, but these are rather large and complicated, likewise as they are not reliable in use nor free from danger.

By the present invention it has been endeavored to meet theseinconveniences. The lamp is further collapsible, so that it may be carried in the pocket.

On the drawing is shown some forms of execution of the invention, but it should expressly be mentioned, that the characteristic features of the invention consists in the placing and displacement or turning of the match; while all the other arts of the mechanism may be varied in many different ways.

On the drawing Figure 1 is a form of the outfolded lamp in side view.

Fig. 2 is a detail of the match-holder.

Fig. 3 shows the lamp in top view and,

Fig. 4 shows another form of the lamp seen from the side. i

Fig. 5 is a perspective view of the handle and of the placing of the match-holder.

Fig. 6 shows the placing of the match in the striking-composition. 1

The lamp itself consists of a plate 1, which is horizontal when in working position, with a bent rear ed e 2, upon which the back plate 3, which is vertical when in working.

position is applied in hinged manner and kept fast in the outfolded position by a air of leaf-springs 4. p l

The front part 5 of the plate lis ofi'set and provided with an upstanding outeredge 6. In the middle-of the member 5 is pressed down a tongue 7 so that by thistongue'and the surrounding edges of themember 5 there is formed a holder, which. may be of a springy character.

On the undersideofthe plate 1 near the rear edge 2 is a loop or socket 8 for engage- IIIGTlt with the handle JAR-1.5, and across the upper side of the plate lies a matehholder 9,

which is,in the form of execution now in question, square, and arranged in such a manner, that it may travel through a corresponding hole a in the rear-edge 2. The holder '9 has a-hole10,which extends entirely through the same to permit of cleansing and a screw 11 for holding the match in the hole." The rear-endof-the holder 9 has a cylindric neck 12 and a head 13, which has rectangular form. 1

The handle consists of a V-spring, the two branches of which are marked 14 and 15. The upper part of the branch 15 has a bending 16, which passes through a slot, formed by the branch 14, after which the end of the bending 16 has a. bending 24, while the/outer end is arranged to cooperate with the hoop 8, so that the plate 1 is held securely on the handle.

1 The upper end of the branch 14 is likewise bent, and forms a slot for the head 13 of the match-holder 9.

The branches 14 and 15 have a pair of finger plates 17 in order to facilitate the manipulation of the handle.

The apparatusoperates in the following manner: w

The plate 3 is raised so that the holding springs 4 keep the plate in the vertical position. The holder 9 is pushed back, and the slot on the branch 14 is engaged with the head 13, by holding the handle in a horizontal po' sition. When the head 13 has been passed through the slot, so that the branches of the latter embracethe neck 12, the handle is turned to the verticalposition, and the end of the branch 16 is pushed into thehoop 8. This position is shown on Figs. 1 and 3.

N owa piece of bent striking-composition 18 is applied between the tongue 7 and the plate 5 of. theholder,and the compositionfree. endof a match 19, is introduced betweenthe two. pieoesof the striking-coma position, and then pushed into the match holder 9,;fand clamped therein by the screw 11.@Ilighhproducing powder is then a plied on the plate 1 above and around tie holder 9:,Tand in such amanner, that no powder is required on the place where the match 19 leaves the pieces of the striking compos tioalam 'i- 1 l The apparatus is now ready for use, and when, the" branches 14 and 1 5 are pressed together, or rather, that the branch 14 is pressed up against the branch 15, the match h lder Will be d n out and the head or Instead of the .head 13 other means of con- 9, which has here, outside the back plate .3, a

' branch la may be used.

nection between the holder and the springln Fig. 4 is shown a different form of means for the moving of the match-holder head 13, but this cooperates here with a pin 20, which by aBowden release 21 in connection with a press-knob 22 and corresponding handle 23, so'thatthe pin 20 may be pushed forward which movement is transferred to the head 13, and therefrom to the matchholder. By this arrangement the handle 1415 is ma'desuperfluous, and the lamp may then ibG worked ata distance, as the Bowden a; release may be glven a length of several metersf Besides, the lamp may be arranged to be used with the handle when using the Bowden release, and the Bowden releasemay be arranged to drawinstead of to push, its

front parts (the wire and the end of the splral) being then fastened respectively to the head 13 of the match "holder and to an elongation upward of the handlebranch15.

As well by the use of handle as of Bowden release this lamp is absolutely free from danger,'as it is free from the springs now in use, which should be set before the use and the releasing of which may happen unintendedly and untimely. Likewise a failing is' excluded a good composition on the match-supposed) owing to the strikingeomposition squeezing the match during the pulli-ngout.

As a modification should be mentioned that the match-holder needs not necessarily to be displaced, but may be arranged swinging around a fixed point, so that the match isignited by swinging on above or between 9 the striking composition.

For executing this movement the same transmission organs as above described may be used. I i

' Having now described my invention what I claim as new and desire to secure 'by Let- Copieso! this patent .may be obtained for ters Patent is I A magnesium lamp for photographic use, comprising a lamp body, a sliduble match holder mounted on the body, two igniting surfaces removably secured to the lamp body in front of the match holder and between which a match extends, and means for sliding the match holder.

2; A magnesium lamp for photographic use, comprising a lamp body, a slidable match holder mounted on the body, two igniting surfaces carried by the body in front of the match holder and between which a match extends, and a handle secured to the lamp body and having a movable member engaging the match holder to slide the same.

3. A magnesium lamp for photographic use, comprising a lamp body, a match holder slidably mounted on the body and having one end projecting through the same, two igniting surfaces carried by the lamp body and between which a match extends, and an approximately V-shaped spring handle, having one member secured to the lamp body and the other to the projecting end of the match holder.

4. A magnesium lamp for photographic use, comprising a lamp body formed ofmembers hinged together to fold upon one an other, a match holder slidably mounted on the body and having one end projecting through the same, two igniting surfaces carried by the lamp body in front of the match holder and between which a match extends,

and an approximately V-shaped spring haudle having one of its members detachably secured to the lamp body and its other end detachably secured to the projecting end of the match holder.

In a magnesium lamp for photographic use, a lamp body having a socket in its bottom, a match holder slidably mounted on the body and having one end projecting through the same and provided with a head on said end, and an approximately I-shapeil spring handle, one member being bent so as to engage the socket of the lamp body and the other member provided with a slot for engaging the head of the match holder.

6 In a magnesium lamp for photographic use, a lamp body having an olfset and a tongue in its base, a match holder mounted toslide on the base in rear of the offset, and an igniting surface formed of a piece of material bent and held by the tongue in front ofthe match holder.

In testimony whereof I aflix my signature in presence of two witnesses.

' JENS PETER HANSEN.

' Witnesses:

CHARLES UN E, FANE KEW.

five cents each, by addressing the Commissioner of lateats, Washington, D. C. 

